Electronic cigarette vaporizer

ABSTRACT

An electronic cigarette vaporizer comprises an outer tube, a mouthpiece member arranged at an end of the outer tube, and a vaporizing member arranged inside the outer tube. The vaporizing member comprises a two-part tube body which is integrally-formed and consists of a vapor tube located at an upper position and having a smaller diameter and a vaporizing tube located at a lower position and having a greater diameter which are connected with each other. A storage chamber for storing vapor substrate is formed between an outer wall of the two-part tube body and an inner wall of the outer tube. A tube-shaped vaporizing core for heating and vaporizing the vapor substrate is sleeved inside the vaporizing tube. A wall portion of the vaporizing tube is provided with a substrate through-hole. An upper end of a wall portion of the vapor tube is provided with a vent aperture.

TECHNICAL FIELD

The disclosure relates to the field of electronic cigarettes, more particularly to an electronic cigarette vaporizer.

BACKGROUND

The electronic cigarettes usually heat the e-cigarette liquid by means of a vaporizer, to produce vapor for the user. Existing electronic cigarettes usually each comprise a vaporizer and a battery rod, and the electronic cigarette vaporizer generally comprise a mouthpiece, a liquid storage chamber, a vaporizing member, etc. The cigarette liquid stored in the liquid storage chamber of existing electronic cigarette vaporizer usually has low viscosity. The waxy solid formed by solidification of tobacco tar has high viscosity and can hardly flow at room temperature, and can hardly be vaporized by existing electronic cigarette vaporizers.

In addition, existing electronic cigarettes usually are prefilled with cigarette liquid before delivery. During long-distance transport, leakage of cigarette liquid may occur due to jolt, vibration, and the like, resulting in poor user experience during use.

SUMMARY Technical Problem

An object of the disclosure is to provide an electronic cigarette vaporizer which overcomes the above shortcomings.

Technical Solutions

The disclosure provides a technical solution as follow. An electronic cigarette vaporizer comprises an outer tube, a mouthpiece member arranged at one end of the outer tube, a connecting member arranged at the other end of the outer tube, and a vaporizing member arranged inside the outer tube. The mouthpiece member comprises a mouthpiece housing having a mouthpiece end and a connecting end. A vapor passage extending through the mouthpiece end and the connecting end is formed in the center of the mouthpiece housing. The vaporizing member comprises a two-part tube body which is integrally-formed. The two-part tube body consists of a vapor tube located at the upper position and having a smaller diameter, and a vaporizing tube located at the lower position and having a greater diameter. The vapor tube and the vaporizing tube are connected with each other. A storage chamber for storing vapor substrate is formed between an outer wall of the two-part tube body and an inner wall of the outer tube. A tube-shaped vaporizing core for heating and vaporizing the vapor substrate is sleeved inside the vaporizing tube. A wall portion of the vaporizing tube is provided with a substrate through-hole. An upper end of a wall portion of the vapor tube is provided with a vent aperture. During assembly of the mouthpiece member, the connecting end fits tightly between the outer tube and the vapor tube, such that the air is compressed. The compressed air may be evacuated through the vent aperture. In this way, the leakage of the vapor substrate due to the compressed air can be avoided.

Preferably, the two-part tube body may be integrally-formed and made of a material which is stainless and corrosion resistant and readily conducts heat. When the vapor substrate is heated by the tube-shaped vaporizing core, the excessive heat energy can be quickly transferred to the vapor substrate disposed in the storage chamber by the two-part tube body, such that the vapor substrate may be preheated to improve fluidity.

Preferably, the vapor substrate may be cigarette liquid, tobacco tar having high viscosity, or waxy solid formed by solidification of tobacco tar, which produce vapor when being heated.

Preferably, the tube-shaped vaporizing core may comprise a porous ceramic tube, a porous quartz tube, or a porous carbon fiber tube, with a heating element being embedded inside.

Preferably, between the inner wall of the vaporizing tube and the tube-shaped vaporizing core, a liquid-permeable layer may be further provided.

Preferably, the liquid-permeable layer may be made of non-woven fabric, carbon fiber, quartz fiber, or organic cotton.

Preferably, the mouthpiece member may further comprise a mouthpiece sealing ring, a wall portion of the connecting end of the mouthpiece housing may be provided with a groove which extends axially and has an annular shape, and the mouthpiece sealing ring may be disposed in the groove and tightly abuts against an outer wall of the vapor tube.

Preferably, a metallic ring may be further disposed between an outer wall of the mouthpiece sealing ring and the mouthpiece housing.

Preferably, the connecting member may comprise a base provided with a through-hole extending axially, an upper portion of the base is located between the outer tube and the vaporizing tube, a lower portion of the base has an outer wall having a reduced outer diameter, and the outer wall is provided with connecting threads for connecting a battery rod to form an electronic cigarette by the electronic cigarette vaporizer and the battery rod, and a positive electrode is disposed in the through-hole of the base.

Preferably, two ends of the outer tube may be respectively connected with a metal sleeve.

Advantages

Before insertion of the mouthpiece member, the space between the outer wall of the two-part tube body and the inner wall of the outer tube is opened. Such structure facilitates filling of the vapor substrate. The connection mode, in which the mouthpiece member is inserted in the outer tube by an external force, facilitates machine/manual operation and further facilitates filling procedure at the sales area. During assembly of the mouthpiece member, the connecting end fits tightly between the outer tube and the vapor tube. The air between the outer tube and the vapor tube may be compressed and evacuated through the vent aperture, such that the pressure in the storage chamber may be reduced, preventing the vapor substrate from being squeezed out through the substrate through-hole 303 under the pressure to cause leakage. The integrally-formed two-part tube body is made of a material which readily conducts heat. When the tube-shaped vaporizing core is energized to work, excessive heat energy may be generated and absorbed and transferred to the vapor substrate by the two-part tube body, such that the tobacco tar having high viscosity, the waxy solid formed by solidification of tobacco tar, or the like, may be preheated to reduce viscosity and improve fluidity. It facilitates the vapor substrate to permeate through the substrate through-hole to the tube-shaped vaporizing core. In this way, more vapor substrate may be feed during vaporization, and more vapor may be produced in unit time, thereby providing good user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of an electronic cigarette vaporizer according to the disclosure;

FIG. 2 is a side view of an electronic cigarette vaporizer according to the disclosure;

FIG. 3 is a structural view illustrating an electronic cigarette vaporizer according to the disclosure in an exploded state;

FIG. 4 is a structural view illustrating a vaporizing member of the disclosure in an exploded state;

FIG. 5 is a cross-sectional view of an electronic cigarette vaporizer according to the disclosure, with a mouthpiece member being removed;

FIG. 6 is a structural view illustrating a mouthpiece member of the disclosure in an exploded state;

FIG. 7 is a front cross-sectional view of an electronic cigarette vaporizer according to the disclosure;

FIG. 8 is a side cross-sectional view of an electronic cigarette vaporizer according to the disclosure;

FIG. 9 is a cross-sectional view illustrating a base of the disclosure;

FIG. 10 is a structural view illustrating a connecting member of the disclosure in an exploded state;

FIG. 11 is a structural view illustrating an outer tube of the disclosure in an exploded state.

DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS

In order to make purposes, technical solutions and advantages of the disclosure clearer, the disclosure will be further explained in detail with reference to drawings and embodiments described hereinafter.

For convenience of description, an electronic cigarette vaporizer of the disclosure is illustrated when it is vertically disposed, with a mouthpiece end being located in the upper position, as shown in the drawings. The terms, such as “upper”, “lower”, “upper portion”, “lower portion”, “upper end”, “lower end”, “upper surface”, “lower surface” as used in the disclosure, refer to position and orientation relationships when the electronic cigarette vaporizer is vertically disposed, with the mouthpiece end being located in the upper position.

Embodiments

Referring to FIGS. 1-3, an electronic cigarette vaporizer according to an embodiment of the disclosure comprises an outer tube 2, a mouthpiece member 1 arranged at one end of the outer tube 2, a connecting member 4 arranged at the other end of the outer tube 2, and a vaporizing member 3 arranged inside the outer tube 2.

Referring to FIGS. 4 and 5, the vaporizing member 3 comprises a two-part tube body 30 which is integrally-formed. The two-part tube body 30 consists of a vapor tube 301 disposed at the upper position and having a smaller diameter, and a vaporizing tube 302 disposed at the lower position and having a greater diameter. The vapor tube 301 and the vaporizing tube 302 are connected with each other. The two-part tube body 30 is integrally-formed and is made of a material which is stainless and corrosion resistant and readily conducts heat, such as stainless steel. A storage chamber for storing vapor substrate is formed between an outer wall of the two-part tube body 30 and an inner wall of the outer tube 2. A tube-shaped vaporizing core 31 for vaporizing the vapor substrate to produce vapor is sleeved inside the vaporizing tube 302. A wall portion of the vaporizing tube 302 is provided with a substrate through-hole 303. An upper end of a wall portion of the vapor tube 301 is provided with a vent aperture 304.

In the embodiment, the vapor substrate may comprise cigarette liquid, tobacco tar having high viscosity, waxy solid formed by solidification of tobacco tar, or the like, which produce vapor when being heated.

Referring to FIGS. 5-7, the mouthpiece member 1 comprises a mouthpiece housing 10 having a mouthpiece end 101 and a connecting end 102. A vapor passage 103 extending through the mouthpiece end and the connecting end is formed in the center of the mouthpiece housing 10. During assembly of the mouthpiece member 1, the connecting end 102 fits tightly between the outer tube 2 and the vapor tube 301, such that the air between the outer tube 2 and the vapor tube 301, i.e., the air inside the storage chamber 5, is compressed. The compressed air may be evacuated through the vent aperture 304, such that the pressure in the storage chamber 5 may be reduced, preventing the vapor substrate from being squeezed out through the substrate through-hole 303 under the pressure of the compressed air to cause leakage. In this way, the leakage of the vapor substrate during assembly can be avoided.

In the embodiment of the disclosure, the mouthpiece member 1 is inserted in the outer tube 2 by an external force and is fastened by the tight fit connection. Before insertion of the mouthpiece member, the space between the outer wall of the two-part tube body 30 and the inner wall of the outer tube 2 is opened. Such structure facilitates filling of the vapor substrate, such as the cigarette liquid, tobacco tar having high viscosity, and waxy solid formed by solidification of tobacco tar. Hence, if the electronic cigarette vaporizer is going to be sold abroad, it is not necessary to prefill the vapor substrate before delivery. Instead, the vapor substrate may be filled after delivery to the sales area. Further, the connection mode, in which the mouthpiece member 1 is inserted in the outer tube 2 by an external force, facilitates machine/manual operation and further facilitates filling procedure at the sales area.

The integrally-formed two-part tube body 30 is made of a material which is stainless, corrosion resistant, and readily conducts heat, such as stainless steel. When the tube-shaped vaporizing core 31 is energized to work, excessive heat energy may be generated. As the two-part tube body 30 is made of a material which readily conducts heat, the excessive heat energy can be absorbed and transferred to the vapor substrate by the two-part tube body 30, such that the tobacco tar having high viscosity, the waxy solid formed by solidification of tobacco tar, or the like, may be preheated to reduce viscosity and improve fluidity. Then, the vapor substrate may permeate through the substrate through-hole 303 to the tube-shaped vaporizing core 31. In this way, more vapor substrate may be feed during vaporization, and more vapor may be produced in unit time, thereby providing good user experience.

In the embodiment, the tube-shaped vaporizing core 31 may be a porous ceramic tube, a porous quartz tube, or a porous carbon fiber tube, with a heating element being embedded inside.

Referring to FIG. 4, between the inner wall of the vaporizing tube 302 and the tube-shaped vaporizing core 31, a liquid-permeable layer 32 is provided in the embodiment, which is made of a material such as non-woven fabric, carbon fiber, quartz fiber, organic cotton.

Referring to FIGS. 6-8, the mouthpiece member 1 further comprises a mouthpiece sealing ring 11. The wall portion of the connecting end 102 of the mouthpiece housing 10 is provided with a groove 104 which extends axially and has an annular shape. The mouthpiece sealing ring 11 is disposed in the groove 104 and tightly abuts against an outer wall of the vapor tube 301. A metallic ring 12 is further disposed between an outer wall of the mouthpiece sealing ring 11 and the mouthpiece housing 10. Due to the metallic ring 12, the rigidity of the connecting end 102 can be improved, thereby preventing the mouthpiece housing 10 (made of plastic material) from being deformed under pressure, to cause loose connection which may lead to falling off of the mouthpiece housing, leakage of the vapor substrate, etc.

Referring to FIG. 7, a series of arrows as shown in the drawing show a direction in which the vapor substrate flows. That is, the vapor substrate is preheated by the outer wall of the two-part tube body 30, and then flows downward from the storage chamber 5. It permeates through the substrate through-hole 303 of the vaporizing tube 302 into the tube-shaped vaporizing core 31. Then, by means of the heating element which is disposed in the tube-shaped vaporizing core 31 and is energized to generate heat, the vapor substrate is heated and vaporized to produce vapor. The vapor of the electronic cigarette may flow upward through a central passage of the tube-shaped vaporizing core 31 and then may be inhaled.

Referring to FIG. 8, a series of arrows as shown in the drawing show a direction in which the intake air and the vapor of the electronic cigarette flow. That is, under suction force of the user, the outside air flows upward through the central passage at the positive electrode 41 of the connecting member 4. When it passes the tube-shaped vaporizing core 31, the vapor produced in the tube-shaped vaporizing core 31 is enabled to flow upward through the vapor tube 301 and the vapor passage 103 of the mouthpiece housing 10, and then may be inhaled by the user.

Referring to FIGS. 9 and 10, the connecting member 4 comprises a base 40, and the base 40 is provided with a through-hole 401 extending axially. An upper portion of the base 40 is located between the outer tube and the vaporizing tube. A lower portion of the base 40 has an outer wall having a reduced outer diameter, and the outer wall is provided with connecting threads 402 for connecting a battery rod to form an electronic cigarette by the electronic cigarette vaporizer and the battery rod. The positive electrode 41 is disposed in the through-hole 401 of the base 40, and an electrode insulating ring 42 is arranged between the positive electrode 41 and the base 40. In such a case, as the base 40 also serves as a negative electrode, it is necessary to provide the electrode insulating ring 42 therebetween, to provide insulation. The upper portion of the through-hole 401 of the base 40 is further arranged with an insulation cover 44. The tube-shaped vaporizing core 31 is supported in the upward direction by means of the insulation cover 44, and the tube-shaped vaporizing core 31 and the electrodes are prevented from being contacted with the base 40 serving as the negative electrode. A bottom sealing ring 43 is further arranged on the base 40, at a position between the outer tube 2 and the vaporizing tube 302. The bottom sealing ring 43 serves to avoid a leakage of the vapor substrate disposed in the storage chamber 5 from the bottom.

Referring to FIG. 11, two ends of the outer tube 2 are respectively connected with metal sleeves 21, 22. Due to the metal sleeves 21, 22, the rigidity of two ends of the outer tube can be improved, thereby preventing the outer tube (made of plastic material) from being deformed under pressure, to cause loose connection at the two ends.

INDUSTRIAL APPLICABILITY

All the above are merely preferred embodiments of the disclosure. The present invention is intended to cover all modifications and equivalent arrangements those skilled in the art can make according to the technical essence of the present invention. 

1. An electronic cigarette vaporizer, comprising an outer tube, a mouthpiece member arranged at an end of the outer tube, a connecting member arranged at another end of the outer tube, and a vaporizing member arranged inside the outer tube, wherein the mouthpiece member comprises a mouthpiece housing having a mouthpiece end and a connecting end, a vapor passage extending through the mouthpiece end and the connecting end is formed in center of the mouthpiece housing, the vaporizing member comprises a two-part tube body which is integrally-formed and consists of a vapor tube located at an upper position and having a smaller diameter and a vaporizing tube located at a lower position and having a greater diameter, the vapor tube and the vaporizing tube are connected with each other, a storage chamber for storing vapor substrate is formed between an outer wall of the two-part tube body and an inner wall of the outer tube, a tube-shaped vaporizing core for heating and vaporizing the vapor substrate is sleeved inside the vaporizing tube, a wall portion of the vaporizing tube is provided with a substrate through-hole, an upper end of a wall portion of the vapor tube is provided with a vent aperture, during assembly of the mouthpiece member, the connecting end fits tightly between the outer tube and the vapor tube to compress air, and the vent aperture allows the compressed air to evacuate, avoiding a leakage of the vapor substrate caused by the compressed air.
 2. The electronic cigarette vaporizer according to claim 1, wherein the two-part tube body is integrally-formed and made of a material which is stainless and corrosion resistant and readily conducts heat, excessive heat energy generated during heating of the vapor substrate by the tube-shaped vaporizing core is quickly transferred to the vapor substrate disposed in the storage chamber by the two-part tube body, to preheat the vapor substrate to improve fluidity.
 3. The electronic cigarette vaporizer according to claim 1, wherein the vapor substrate comprises cigarette liquid, tobacco tar having high viscosity, or waxy solid formed by solidification of tobacco tar, which produce vapor when being heated.
 4. The electronic cigarette vaporizer according to claim 1, wherein the tube-shaped vaporizing core comprises a porous ceramic tube, a porous quartz tube, or a porous carbon fiber tube, with a heating element being embedded inside.
 5. The electronic cigarette vaporizer according to claim 1, wherein between an inner wall of the vaporizing tube and the tube-shaped vaporizing core, a liquid-permeable layer is further provided.
 6. The electronic cigarette vaporizer according to claim 5, wherein the liquid-permeable layer is made of non-woven fabric, carbon fiber, quartz fiber, or organic cotton.
 7. The electronic cigarette vaporizer according to claim 1, wherein the mouthpiece member further comprises a mouthpiece sealing ring, a wall portion of a connecting end of the mouthpiece housing is provided with a groove which extends axially and has an annular shape, and the mouthpiece sealing ring is disposed in the groove and tightly abuts against an outer wall of the vapor tube.
 8. The electronic cigarette vaporizer according to claim 7, wherein a metallic ring is further disposed between an outer wall of the mouthpiece sealing ring and the mouthpiece housing.
 9. The electronic cigarette vaporizer according to claim 1, wherein the connecting member comprises a base provided with a through-hole extending axially, an upper portion of the base is located between the outer tube and the vaporizing tube, a lower portion of the base has an outer wall having a reduced outer diameter, and the outer wall is provided with connecting threads for connecting a battery rod to form an electronic cigarette by the electronic cigarette vaporizer and the battery rod, and a positive electrode is disposed in the through-hole of the base.
 10. The electronic cigarette vaporizer according to claim 1, wherein two ends of the outer tube are respectively connected with a metal sleeve. 